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Figure 10-10.-Drawbar.
Turning Around

Equipment Operator Basic - Beginning construction equipment operators manual
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Figure  10-12.-Scarifiers. to be penetrated by the blade. The scarifier is either pulled or pushed through the material, depending on the make and model of the grader and the position of the scarifier unit on the equipment. Figure 10-12 shows two types and locations of scarifies on graders. The  teeth,  consisting  of  slender  shanks  with replaceable caps, are set in a V-shaped bar (fig. 10-13). The shanks are wedged or clipped in place and maybe adjusted for height or removed completely. A scarifier with all the teeth is used for shallow penetration  and  light  work.  For  hard  or  deeper penetration,  remove  every  other  tooth. GRADER OPERATIONS Although the grader is a multipurpose machine that is capable of doing a variety of jobs, the performance of the grader depends largely upon the skill of the operator. The extensive skill required to perform as an effective grader operator is only gained through practice and on-the-job  experience. Wheel  Lean The proper use of the front wheels is a great aid in .    . both steering and grading. In grading, lean the top of Figure  10-13.-Scarifier  teeth. Figure 10-14.-Proper wheel lean. 10-6







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